package io;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * 文件复制(单字节读写)
 */
public class CopyDemo {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("641.webp");
        FileOutputStream fos = new FileOutputStream("641_Jordan.jpg");

        long start = System.currentTimeMillis(); //获取自1980.1.1零时到此时此所经历的毫秒数
        int d;
        while ((d = fis.read()) != -1) {
            fos.write(d);
        }
        long end = System.currentTimeMillis();

        System.out.println("复制完毕, 耗时:" + (end - start) + "ms");
        fis.close();
        fos.close();
    }
}
